<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Template</title>
</head>
<body>

<div id="app">
    <h2 v-if="isShow">
        {{message}}
        <div>abcd</div>
        <div>abcd</div>
        <div>abcd</div>
        <div>abcd</div>
    </h2>

    <h1 v-else>isShow为false时, 显示我</h1>
</div>

<script src="../js/vue.js"></script>
<script>
    const app = new Vue
    (
        {
            el : "#app",
            data : 
            {
                message: "hello",
                isShow : true,
            }
        }
    )
</script>
    
</body>
</html>